I think so yes. It just doesn't make much sense to handle larger 64bitsetups with multiple GB of memory with 4K pages. While larger softpagesize will not increase TLB usage it will give you less cache use and ingeneral less cycles while accessing mem_map and while doing VM operations in general. Other benefits are faster TLB flush (I saw some bottleneckswith that in 2.4 on large systems)

Simple example: you have to handle a few GB of memory in the LRUlist. Doing it with half as many objects (8k page instead of 4k) is much more efficient.